Analysis Overview
SHA256
4a181732e82bac9de2926c6982ff94b2f513e8751a76f6eb3bb9eba4f7634f3d
Threat Level: Known bad
The file ce9dbb3a5ca2777c073c0e1c6900e027.exe was found to be: Known bad.
Malicious Activity Summary
Quasar payload
Quasar RAT
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Uses the VBS compiler for execution
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of SendNotifyMessage
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-01-11 07:26
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-01-11 07:26
Reported
2023-01-11 07:28
Platform
win7-20220812-en
Max time kernel
152s
Max time network
155s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\systemx888.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe | N/A |
Uses the VBS compiler for execution
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1292 set thread context of 1160 | N/A | C:\Users\Admin\AppData\Roaming\systemx888.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\sln_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\sln_auto_file | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.sln\ = "sln_auto_file" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\sln_auto_file\shell\Read | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\sln_auto_file\shell | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\sln_auto_file\ | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.sln | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\sln_auto_file\shell\Read\command | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe
"C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\project.sln
C:\Users\Admin\AppData\Roaming\systemx888.exe
"C:\Users\Admin\AppData\Roaming\systemx888.exe"
C:\Windows\SysWOW64\cmd.exe
"cmd" /C schtasks /create /tn \pGLCR /tr "C:\Users\Admin\AppData\Roaming\systemx888.exe" /st 00:00 /du 9999:59 /sc once /ri 60 /f
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn \pGLCR /tr "C:\Users\Admin\AppData\Roaming\systemx888.exe" /st 00:00 /du 9999:59 /sc once /ri 60 /f
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\project.sln"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 45.138.16.40:4782 | tcp |
Files
memory/992-54-0x0000000000820000-0x00000000008F6000-memory.dmp
memory/992-55-0x0000000004EA0000-0x00000000050A4000-memory.dmp
memory/992-56-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
memory/820-57-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\systemx888.exe
| MD5 | d561a17252e9cbb698307f1142f4b524 |
| SHA1 | 89490ef9113cad42253894332fb3efe033ca0ad3 |
| SHA256 | 9599d3f669b050eda2ca52cf249766c0103d5d4ae3519e09bdeb6944cff31a0f |
| SHA512 | da595d699140110db0614b104d53c8ba71f59ac510ef54f6f8a93fe70c7ac1825acc280d60bdb873544e164cfdcdb0adf1922a216c19a0f0aabaef8eb7a43264 |
memory/1292-60-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\systemx888.exe
| MD5 | d561a17252e9cbb698307f1142f4b524 |
| SHA1 | 89490ef9113cad42253894332fb3efe033ca0ad3 |
| SHA256 | 9599d3f669b050eda2ca52cf249766c0103d5d4ae3519e09bdeb6944cff31a0f |
| SHA512 | da595d699140110db0614b104d53c8ba71f59ac510ef54f6f8a93fe70c7ac1825acc280d60bdb873544e164cfdcdb0adf1922a216c19a0f0aabaef8eb7a43264 |
C:\Users\Admin\AppData\Roaming\systemx888.exe
| MD5 | d561a17252e9cbb698307f1142f4b524 |
| SHA1 | 89490ef9113cad42253894332fb3efe033ca0ad3 |
| SHA256 | 9599d3f669b050eda2ca52cf249766c0103d5d4ae3519e09bdeb6944cff31a0f |
| SHA512 | da595d699140110db0614b104d53c8ba71f59ac510ef54f6f8a93fe70c7ac1825acc280d60bdb873544e164cfdcdb0adf1922a216c19a0f0aabaef8eb7a43264 |
memory/1292-63-0x0000000000190000-0x0000000000394000-memory.dmp
memory/1196-64-0x0000000000000000-mapping.dmp
memory/896-65-0x0000000000000000-mapping.dmp
memory/828-66-0x0000000000000000-mapping.dmp
memory/1292-68-0x0000000000510000-0x0000000000524000-memory.dmp
memory/1292-69-0x0000000000750000-0x0000000000758000-memory.dmp
memory/1160-70-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1160-71-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1160-73-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1160-74-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1160-75-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1160-76-0x000000000047E7AE-mapping.dmp
memory/1160-78-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1160-80-0x0000000000400000-0x0000000000484000-memory.dmp
C:\Users\Admin\AppData\Roaming\project.sln
| MD5 | bcddd763c8b71b8e2f0cffed40d9d346 |
| SHA1 | 66ca272298710c520624648ff30e72cda8c2725c |
| SHA256 | e6047eabd547f48e36fefe59fcd5049910a5af9aec74e1255195a13ada20bb25 |
| SHA512 | 7efd8db6ade644d558229e39f365775a4bbdc4a8940c2884d7fef6f52f913d3cc7c9f4bd28c70d94351ddf3f6cf30e101e5fcc28b68094aa2c9d56c8f2896f40 |
\??\PIPE\srvsvc
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
Analysis: behavioral2
Detonation Overview
Submitted
2023-01-11 07:26
Reported
2023-01-11 07:28
Platform
win10v2004-20220812-en
Max time kernel
143s
Max time network
157s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\systemx888.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe | N/A |
Uses the VBS compiler for execution
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.ipify.org | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2432 set thread context of 2028 | N/A | C:\Users\Admin\AppData\Roaming\systemx888.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings | C:\Windows\system32\OpenWith.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\OpenWith.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe
"C:\Users\Admin\AppData\Local\Temp\ce9dbb3a5ca2777c073c0e1c6900e027.exe"
C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
C:\Users\Admin\AppData\Roaming\systemx888.exe
"C:\Users\Admin\AppData\Roaming\systemx888.exe"
C:\Windows\SysWOW64\cmd.exe
"cmd" /C schtasks /create /tn \pGLCR /tr "C:\Users\Admin\AppData\Roaming\systemx888.exe" /st 00:00 /du 9999:59 /sc once /ri 60 /f
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn \pGLCR /tr "C:\Users\Admin\AppData\Roaming\systemx888.exe" /st 00:00 /du 9999:59 /sc once /ri 60 /f
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 52.182.143.210:443 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 40.125.122.151:443 | tcp | |
| N/A | 67.24.171.254:80 | tcp | |
| N/A | 67.24.171.254:80 | tcp | |
| N/A | 45.138.16.40:4782 | tcp | |
| N/A | 8.8.8.8:53 | tools.keycdn.com | udp |
| N/A | 185.172.148.96:443 | tools.keycdn.com | tcp |
| N/A | 8.8.8.8:53 | api.ipify.org | udp |
| N/A | 64.185.227.156:443 | api.ipify.org | tcp |
| N/A | 8.8.8.8:53 | 96.108.152.52.in-addr.arpa | udp |
| N/A | 67.26.209.254:80 | tcp |
Files
memory/2248-132-0x0000000000280000-0x0000000000356000-memory.dmp
memory/2432-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\systemx888.exe
| MD5 | d561a17252e9cbb698307f1142f4b524 |
| SHA1 | 89490ef9113cad42253894332fb3efe033ca0ad3 |
| SHA256 | 9599d3f669b050eda2ca52cf249766c0103d5d4ae3519e09bdeb6944cff31a0f |
| SHA512 | da595d699140110db0614b104d53c8ba71f59ac510ef54f6f8a93fe70c7ac1825acc280d60bdb873544e164cfdcdb0adf1922a216c19a0f0aabaef8eb7a43264 |
C:\Users\Admin\AppData\Roaming\systemx888.exe
| MD5 | d561a17252e9cbb698307f1142f4b524 |
| SHA1 | 89490ef9113cad42253894332fb3efe033ca0ad3 |
| SHA256 | 9599d3f669b050eda2ca52cf249766c0103d5d4ae3519e09bdeb6944cff31a0f |
| SHA512 | da595d699140110db0614b104d53c8ba71f59ac510ef54f6f8a93fe70c7ac1825acc280d60bdb873544e164cfdcdb0adf1922a216c19a0f0aabaef8eb7a43264 |
memory/2432-136-0x00000000005E0000-0x00000000007E4000-memory.dmp
memory/2432-137-0x00000000055A0000-0x0000000005B44000-memory.dmp
memory/1492-138-0x0000000000000000-mapping.dmp
memory/704-139-0x0000000000000000-mapping.dmp
memory/2028-140-0x0000000000000000-mapping.dmp
memory/2028-141-0x0000000000400000-0x0000000000484000-memory.dmp
memory/2028-142-0x00000000052B0000-0x0000000005342000-memory.dmp
memory/2028-143-0x0000000002E30000-0x0000000002E3A000-memory.dmp
memory/2028-144-0x00000000069C0000-0x0000000006FD8000-memory.dmp
memory/2028-145-0x0000000006470000-0x00000000064C0000-memory.dmp
memory/2028-146-0x00000000066E0000-0x0000000006792000-memory.dmp
memory/2028-147-0x0000000008000000-0x0000000008066000-memory.dmp